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Auto Program Shift
The
OM77AF
has
been
programmed
to
automatical-
ly select a program mode appropriate to the focal
length of the lens to be used. There are individual
programs for telephoto, standard and wide angle
lenses, with the capacity to automatically shift
programs in line with the focal length changes of
zoom lenses. In the wide-angle program mode
(Program chart ), for lenses below 35 mm, depth
of field is given priority. The standard program
mode (Program chart ) is used for lenses in the
90 mm and above, gives higher priority to the
shutter speeds needed to avoid camera shake.
58
Shutter speed
Aperture
35 — 89 mm focal-length range. The telephoto
program mode (Program chart ), for lenses of